摘要:
The invention relates to a method for the production of semi-finished or finished parts made of a molybdenum alloy with intermetallic phase parts, preferably molybdenum silicide, molybdenum boron silicide, selectively also molybdenum boride, phases. The heat compacted material, starting from a mechanically alloyed powder, exhibits superplastic forming behavior. It is thus possible to reduce the forming temperature by at least 300 °C, wherein processing is possible on conventional systems.
摘要:
The invention relates to a method for production of a highly thermal resistant composite body, whereby at least one part made from a high temperature resistant metallic or non-metallic component is bonded to at least one part made from a high temperature resistant non-metallic component by high temperature welding. According to the invention, a metallic barrier layer made from one or more elements of the group V, Nb, Ta, Cr, Mo, W, Ti, Zr, or Hf or the alloys thereof which seals relative to the welding melt is deposited on the surface for welding prior to welding. Welding material, barrier layer and welding conditions are thus selected with relation to each other such that the metallic barrier layer remains at least partly in the solid state such that after the welding said layer remains over a greater part of the welded surface to a depth of at least 10 µm.
摘要:
The present invention relates to a membrane assembly for permeative separation of a fluid from fluid mixtures, comprising a porous, fluid-permeable, metal carrier substrate (2), a membrane (8) formed on the carrier substrate (2), that is selectively permeable for the fluid to be separated, a coupling part (6) that is made, at least superficially, from a fluid-tight metal material, the carrier substrate (2) being integrally connected along one edge section (3) to the coupling part (6), and a ceramic, fluid-permeable, porous first intermediate layer (10) formed between the carrier substrate (2) and the membrane (8). At least one ceramic bonding layer (14) is formed directly on the coupling part (6) and the integral connection (4), extending at least over the integral connection (4) and a neighbouring section of the coupling part (6). The first intermediate layer (10) extends on the bonding layer (14) and has a larger average pore size than the bonding layer (14).
摘要:
The invention relates to an electrochemical module (4) which has a porous plate-shaped metal carrier substrate (8) with a gas-permeable central region (10) and an edge region (12); a layer structure (26) arranged on a first face (13) of the carrier substrate in the central region; at least one gas-tight metal housing part (14) connected to the edge region of the carrier substrate via a welded connection (18); and a gas-tight zone (32) that extends from the layer structure to the housing part. The gas-tight zone has a gas-tight surface section (30), which extends from the layer structure at least to the welded connection over the surface of the first face of the carrier substrate, and the gas-tight zone also has the welded connection, by means of which the gas-tight surface section is connected to the housing part in a gas-tight manner and the welding zone (36) of which extends through only one part of the thickness of the carrier substrate.
摘要:
A supporting system for a heating element includes a supporting member and a base member. The supporting member has a main extension direction extending substantially in a height direction and a proximal and distal end. The proximal end is adapted to support the heating element. The base member is connected via at least one hinge to a distal portion of the supporting member which distal portion is arranged distal from the proximal end. The supporting member is pivotable relative to the base member about a rotation axis which is oriented parallel to a substantially rigid direction.